Hitachi chillers achieve high seasonal efficiency

Hitachi, chillers, air conditioning

Hitachi Air Conditioning’s Samurai RCME-WH series of air-conditioning units is designed to achieve high seasonal efficiency in small- to large-scale commercial and industrial applications. There are four basic modules (140, 180, 220 and 260 kW), which can be combined up to a maximum of eight to achieve a chiller combination of up to 2080 kW.

They use Hitachi screw compressors that are optimised for R134a and part-load performance. Seasonal efficiencies of up to 6.8 can be achieved.

These units have a refrigerant charge up to 60% les than other chillers of similar capacity. This is achieved by using true dual type plate heat exchangers, twin electronic expansion valves and a cyclonic oil separator.

Depending on the combination of modules, capacity can be controlled continuously down to 3%. Water outlet temperatures can be controlled to ±0.5 K.

For more information on this story, click here: June 2015, 165
Related links:
Related articles:



modbs tv logo

Built environment professionals remain positive on future of Net Zero

A recent survey by global climate tech firm IES has revealed that nearly three-quarters of UK built environment professionals believe achieving a Net Zero built environment by 2050 is within reach.

BESA research suggests clients are yet to engage with new building safety regime

Construction clients are failing to engage with the new building safety regime, according to research carried out by the Building Engineering Services Association (BESA).